NOxTech, Inc., developed and demontrated the use of plasma technology to achieve selective reduction of NOx to N2 and oxidation of particulates and hydrocarbons to CO2, using conditioned diesel fuel as the reductant and a NO2 specific catalyst. The NOxTech plasma-assisted catalyst (PAC) system was tested at steady-state and quasi-transient operational modes and demonstrated to reduce NOx and particulate matter emissions from diesel exhaust. Greater than 90% reduction in NOx to N2 and greater thatn 50% removal of particulates was demonstrated on diesel exhaust without the use of additives and requiring less than 5% of the engine brake horsepower. The PAC technology is applicable to both conventional and alternative-fuel on-road light, medium, and heavy-duty vehicles, as well as stationary and off-road diesel engines.
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All areas of the South Coast AQMD will ultimately benefit from this project.
This project was a development and demontration effort. The results indicate that continued development and commercialization could lead to diesel exhaust after-treatment systems that significantly reduce NOx and particulate matter emissions. Exhaust after-treatment is a leading candidate technology that diesel engine manufacturers may pursue in order to meet the more stringent EPA emission standards in 2004 and 2007.
The Final Report includes the Technical Approach, Project Results & Benefits, Recommendations, Commercialization Plan, and the list of inventions resulting from the project.